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Elahi MA, Moore ML, Pollock JR, Haglin JM, Lai C, Hinckley NB, Renfree K. Open Excision of Dorsal Wrist Ganglion. JBJS Essent Surg Tech 2023; 13:e21.00043. [PMID: 38274143 PMCID: PMC10807893 DOI: 10.2106/jbjs.st.21.00043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Abstract
Background Ganglion cysts are benign soft-tissue tumors that are most commonly found in the wrist. Within the wrist, 60% to 70% of ganglion cysts occur on the dorsal side and 20% to 30% occur on the volar side1. Although ganglia arise from multiple sites over the dorsal wrist, dorsal ganglia most commonly originate at the scapholunate joint2,3. Open excision is the standard surgical treatment for dorsal wrist ganglia. This procedure is considered when symptoms such as pain and range-of-motion deficits begin to impact activities of daily living. Description Open excision of a dorsal wrist ganglion is commonly performed with the patient under general anesthesia or a regional block. The patient is placed in the supine position, and a tourniquet is applied on the affected upper limb. After outlining the periphery of the palpable ganglion, the surgeon makes a transverse or longitudinal incision over the ganglion. The surgeon then begins a deep dissection, dissecting through the subcutaneous tissue and isolating the ganglion while avoiding any rupture, if possible. Once the cyst has been identified, extensor tendons surrounding the cyst are retracted and the cyst and stalk are mobilized. The cyst and stalk are subsequently excised, and the wound is closed4. Alternatives Alternative treatments for dorsal wrist ganglia include nonoperative interventions such as observation, aspiration, controlled rupture, and injection. Operative treatments include arthroscopic and open dorsal wrist ganglion resections. Rationale Although nonoperative treatment can produce successful outcomes, the various modalities have been associated with recurrence rates ranging from 15% to 90%4. As a result, surgical excision remains the gold standard of treatment and is typically indicated when weakness, pain, and limited range of motion interfere with activities of daily living. Among surgical interventions, arthroscopic excision is a minimally invasive procedure that has become more common because of the reduced scarring and faster recovery5. However, open excision, which does not involve complex equipment, is regarded as the standard among surgical treatments. Although the rates of recurrence for arthroscopic versus open dorsal ganglion excision are similar, arthroscopic excision is less effective with regard to pain relief5,6. This difference in pain relief could potentially be the result of the neurectomy of the posterior interosseous nerve in an open excision. In contrast, an arthroscopic procedure may provide less relief of pain from the posterior interosseous nerve stump attaching to the scarred capsule5. Expected Outcomes Open excision of a dorsal wrist ganglion is a safe, reliable procedure. The recurrence rate after open excision is similar to that after arthroscopic excision and significantly lower recurrence than that after ganglion cyst aspiration6,7. Additionally, not all ganglion cysts can be aspirated. In a retrospective study assessing the risk of recurrence after open excision of ganglion cysts in 628 patients, researchers reported a recurrence rate of 4.1% among the 341 who underwent open dorsal ganglion excision. Furthermore, the authors reported male sex and less surgeon experience as significant risk factors for cyst recurrence8. In a study assessing outcomes of open dorsal ganglion excision in 125 active-duty military personnel, researchers reported a recurrence rate of 9%. More notably, the researchers found persistent pain at 4 weeks postoperatively in 14% of the participants. The authors recommended that patients whose daily activities require forceful wrist extension, such as athletes and military personnel, should be counseled on the potential functional limitations and residual pain from open dorsal wrist ganglion excision9. Important Tips When conducting an open excision, it is beneficial to identify the stalk of the cyst, allowing the surgeon to excise the complete ganglion complex and prevent recurrence.For large cysts that adhere to the surrounding soft tissue, it is helpful to rupture the ganglion in order to facilitate an easier deep dissection.Excising the scapholunate interosseous ligament could possibly lead to scapholunate dissociation and instability.The posterior interosseous nerve courses past the 4th dorsal compartment and may be resected during the deep dissection.
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Affiliation(s)
| | - M. Lane Moore
- Mayo Clinic Alix School of Medicine, Scottsdale, Arizona
| | | | - Jack M. Haglin
- Department of Orthopedic Surgery, Mayo Clinic, Phoenix, Arizona
| | - Cara Lai
- Department of Orthopedic Surgery, Mayo Clinic, Phoenix, Arizona
| | | | - Kevin Renfree
- Department of Orthopedic Surgery, Mayo Clinic, Phoenix, Arizona
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Horvath A, Zsidai B, Konaporshi S, Svantesson E, Hamrin Senorski E, Samuelsson K, Zeba N. Treatment of Primary Dorsal Wrist Ganglion-A Systematic Review. J Wrist Surg 2023; 12:177-190. [PMID: 36926205 PMCID: PMC10010899 DOI: 10.1055/s-0042-1753542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/30/2022] [Indexed: 10/17/2022]
Abstract
Purpose The aim of this study was to compare the rates of recurrence and wound infection in patients with primary dorsal wrist ganglion treated with aspiration (with or without an injection of an additive), open excision, or arthroscopic resection. Methods This systematic review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines and registered on PROSPERO. Systematic electronic searches in PubMed (MEDLINE), EMBASE, Web of Science, and the Cochrane Library of Controlled Trials were performed on May 5, 2020, and June 1, 2021, respectively. All clinical studies written in English determining the recurrence and wound infection rates after treatment of primary dorsal wrist ganglion with aspiration, open excision, or arthroscopic resection in patients over the age of 16 years were eligible for inclusion. Quality assessment was guided by the Cochrane Collaboration's tool for randomized controlled trials (RCTs) and the methodological index for nonrandomized studies (MINORS) tool for observational studies. Results The literature searches resulted in 1,691 studies. After screening, five RCTs, enrolling 233 patients, and six observational studies, enrolling 316 patients with primary dorsal wrist ganglions were included. Quality assessment of the included RCTs and observational studies determined the existing level of evidence pertaining to primary dorsal wrist ganglion treatment to be low. About 11 studies reported on recurrence rate, which ranged between 7 and 72% for patients initially treated with aspiration (with or without an injection of an additive). In comparison, the recurrence rate for the open excision and arthroscopic resection groups ranged between 6 to 41% and 0 to 16%, respectively. Four studies investigated wound-related complications, for which zero infections were reported, irrespective of treatment. Conclusion The evidence summarized in this systematic review demonstrates a considerable variability in recurrence rate following aspiration and open or arthroscopic resection of a primary dorsal wrist ganglion. The greatest variability in recurrence was displayed among studies on aspiration. The overall infection rate after treatment of dorsal wrist ganglions seems to be low regardless of the treatment type. However, the divergent results of individual studies highlight a pressing need for prospective controlled trials assessing outcomes following dorsal wrist ganglion treatment. Level of Evidence Systematic review on level 1 to 4 clinical therapeutic studies.
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Affiliation(s)
- Alexandra Horvath
- Sahlgrenska Sports Medicine Center, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, Gothenburg, Sweden
| | - Bálint Zsidai
- Sahlgrenska Sports Medicine Center, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Shanga Konaporshi
- Sahlgrenska Sports Medicine Center, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Eleonor Svantesson
- Sahlgrenska Sports Medicine Center, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Hand Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Eric Hamrin Senorski
- Sahlgrenska Sports Medicine Center, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Kristian Samuelsson
- Sahlgrenska Sports Medicine Center, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Nenad Zeba
- Sahlgrenska Sports Medicine Center, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Hand Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden
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3
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Wong CR, Karpinski M, Hatchell AC, McRae MH, Murphy J, McRae MC. Immobilization of the Wrist After Dorsal Wrist Ganglion Excision: A Systematic Review and Survey of Current Practice. Hand (N Y) 2023; 18:254-263. [PMID: 34096351 PMCID: PMC10035098 DOI: 10.1177/15589447211014631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Postoperative care after dorsal wrist ganglion (DWG) excision is highly varied. The effect of immobilization of the wrist on patient outcomes has not yet been examined. METHODS A systematic review of the literature was performed to determine whether wrist immobilization after DWG surgical excision is beneficial. A survey of hand surgeons in Canada was performed to sample existing practice variations in current immobilization protocols after DWG excision. RESULTS A systematic review yielded 11 studies that rigidly immobilized the wrist (n = 5 open excision, n = 5 arthroscopic excision, n = 1 open or arthroscopic excision), 10 studies that used dressings to partially limit wrist motion (n = 5 open, n = 5 arthroscopic), 1 study (open) that did either of the above, and 2 studies (arthroscopic) that did not restrict wrist motion postoperatively. This ranged from 48 hours to 2 weeks in open DWG excision and 5 days to 3 weeks in arthroscopic DWG excision. The survey of Canadian hand surgeons had a similarly divided result of those who chose to immobilize the wrist fully (41%), partially (14%), or not at all (55%). Most surgeons surveyed who immobilized the wrist postoperatively did so for 1 to 2 weeks. CONCLUSION The systematic review and survey of Canadian hand surgeons reveal that hand surgeons are divided regarding the need to immobilize the wrist after DWG excision. In terms of functional outcome, there is no compelling data to suggest 1 strategy is superior. The time frame for immobilization when undertaken was short at 2 weeks or less.The systematic review is registered in the PROSPERO database (PROSPERO 2016:CRD42016050877).
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Affiliation(s)
| | | | | | | | | | - Matthew C McRae
- McMaster University, Hamilton, ON, Canada
- St. Joseph's Healthcare Hamilton, ON, Canada
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Greminger M, Koopman JE, van Kooij YE, Hoogendam L, Smit J, Slijper HP, Selles RW, Calcagni M. Factors associated with self-reported pain and hand function following dorsal wrist ganglion excision. J Hand Surg Eur Vol 2023; 48:551-560. [PMID: 36794465 DOI: 10.1177/17531934231153029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
This study aimed to analyse which factors contribute to pain and limited hand function after dorsal wrist ganglion excision. We included 308 patients who underwent surgery between September 2017 and August 2021. Patients completed baseline questionnaires and the patient-rated wrist/hand evaluation questionnaire at baseline and 3 months postoperatively. We observed an improvement in postoperative pain and hand function, but individual outcomes were highly variable. We performed stepwise linear regression analyses to examine which patient characteristics, disease characteristics and psychological factors were associated with postoperative pain and hand function. Higher postoperative pain intensity was associated with recurrence following previous surgery, treatment of the dominant hand, higher baseline pain intensity, lower credibility the patient attributes to the treatment and longer symptom duration. Worse hand function was associated with recurrence following prior surgery, worse baseline hand function and lower treatment credibility. Clinicians should take these findings into account during patient counselling and expectation management.Level of evidence: II.
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Affiliation(s)
- Martina Greminger
- Department of Plastic- and Hand Surgery, University Hospital Zurich, Switzerland
| | - Jaimy Emerentiana Koopman
- Department of Plastic, Reconstructive, and Hand Surgery, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Yara Eline van Kooij
- Department of Plastic, Reconstructive, and Hand Surgery, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,Xpert Clinics Hand Therapy, The Netherlands
| | - Lisa Hoogendam
- Department of Plastic, Reconstructive, and Hand Surgery, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,Xpert Clinics Hand and Wrist Center, The Netherlands
| | - Jeroen Smit
- Xpert Clinics Hand and Wrist Center, The Netherlands
| | | | - Ruud Willem Selles
- Department of Plastic, Reconstructive, and Hand Surgery, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Maurizio Calcagni
- Department of Plastic- and Hand Surgery, University Hospital Zurich, Switzerland
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Clark DM, Nelson SY, O'Hara M, Putko RM, Bedrin MD, Daniels CM. Surgical and Patient-Centered Outcomes of Open versus Arthroscopic Ganglion Cyst Excision: A Systematic Review. J Wrist Surg 2023; 12:32-39. [PMID: 36644727 PMCID: PMC9836780 DOI: 10.1055/s-0042-1749678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 04/20/2022] [Indexed: 01/18/2023]
Abstract
Introduction As the popularity of wrist arthroscopy grows, it continues to prove useful in the treatment of ganglion cysts. Previous studies comparing an arthroscopic technique to traditional open excision have demonstrated generally equivalent results regarding complications and cyst recurrence. However, this systematic review compares the two treatment methods not only regarding cyst recurrence but also regarding patient-centered outcomes. Additionally, new studies in the available literature may allow for further analysis. Methods This systematic review identified 23 articles published between 2000 and 2021 that met inclusion criteria. Articles were assessed for quality, and reported cyst recurrence rates, patient satisfaction, patients' preoperative and postoperative pain, and complications associated with either open or arthroscopic excisions were pooled into open excision and arthroscopic excision groups for analysis. Results In total, 23 studies accounted for 1,670 cases. Pooled data for patient-centered outcomes indicated a significantly higher patient satisfaction rate (89.2 vs 85.6%, p < 0.001) and higher reported pain relief (69.5 vs. 66.7%, p = 0.011) associated with arthroscopic excision versus open excision. Recurrence rates were also significantly lower for the arthroscopic excision group (9.4 vs. 11.2%, p < 0.001). Overall, the complication rate was significantly lower for arthroscopic excision (7.5 vs. 10.7%, p < 0.001), but the complication profile distinctly differed between the two methods. Conclusions Both arthroscopic and open excision of dorsal wrist ganglions are viable treatment options. However, the results of this meta-analysis suggest benefits associated with the arthroscopic technique in both patient-centered outcomes and in traditional, surgical outcomes. This may prove advantageous as wrist arthroscopy becomes more common.
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Affiliation(s)
- DesRaj M. Clark
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland
| | - Sarah Y. Nelson
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland
| | - Matthew O'Hara
- University of California Riverside, School of Medicine, Riverside, California
| | - Robert M. Putko
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland
| | - Michael D. Bedrin
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Bethesda, Maryland
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Ganglions in the Hand and Wrist: Advances in 2 Decades. J Am Acad Orthop Surg 2023; 31:e58-e67. [PMID: 36580047 DOI: 10.5435/jaaos-d-22-00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 10/12/2022] [Indexed: 12/30/2022] Open
Abstract
Ganglion cysts represent the most common soft-tissue mass in the hand and wrist. Ganglion cysts are most commonly encountered at the dorsal or volar aspects of the wrist, although cysts may arise from the flexor tendon sheath, interphalangeal joint, and extensor tendons. Intraosseous and intraneural ganglion cysts have also been described. Diagnosis of ganglion cysts relies primarily on history and physical examination. Transillumination and aspiration of masses may be useful adjuncts to diagnosis. Imaging such as radiography and ultrasonography may be indicated to evaluate for associated conditions, such as degenerative joint disease, or to rule out a solid or heterogeneous mass. Advanced imaging such as MRI is generally reserved for patients in whom occult ganglions, intraosseous ganglions, or solid tumors, including sarcoma, remain a concern. Treatment of ganglion cysts includes observation, aspiration or puncture with possible corticosteroid injection, and surgical excision. Nonsurgical management may result in cyst resolution in over 50% of patients. Surgical excision is associated with recurrence rates of 7% to 39%. Advances in surgical techniques have allowed surgeons to conduct arthroscopic ganglion excision, with recurrence rates similar to those of open management. This study highlights the advances in diagnosis, treatment, and outcomes that have taken place over the past 2 decades for this common condition affecting the hand and wrist in the adult population.
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Clark D, Dingle M, Saxena S, Dworak T, Nappo K, Balazs GC, Nanos G, Tintle S. Prospective Evaluation of Push-up Performance and Patient-Reported Outcomes Following Open Dorsal Wrist Ganglion Excision in the Active-Duty Military Population. J Wrist Surg 2022; 11:493-500. [PMID: 36504534 PMCID: PMC9731736 DOI: 10.1055/s-0042-1743118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 01/05/2022] [Indexed: 12/15/2022]
Abstract
Background Dorsal wrist ganglia (DWG) are a common wrist pathology that affects the military population. This study prospectively evaluates push-up performance, functional measures, and patient-reported outcomes 6 months after open DWG excision in active-duty patients. Methods Twenty-seven active-duty patients were enrolled and 18 had complete follow-up. Included patients had DWG diagnosis, unilateral involvement, and no previous surgery. The number of push-ups performed within 2 minutes was measured preoperatively and at 6 months. Range of motion (ROM), grip strength, Pain Catastrophization Scale (PCS), Disabilities of the Arm, Shoulder, and Hand (DASH) score, Mayo Wrist Score, and visual analog scale (VAS) pain score were measured preoperatively and at 2 weeks, 6 weeks, 3 months, and 6 months. Results Push-up performance did not significantly change overall. Wrist flexion, extension, and radial deviation returned to preoperative ranges. Wrist ulnar deviation significantly increased from preoperative range. Grip strength deficit between operative and unaffected extremities significantly improved to 0.7 kg at 6 months from preoperative deficit of 2.7 kg. Mean scores significantly improved for the validated outcome measures-PCS from 6.3 to 0.67, VAS pain scores from 1.37 to 0.18, DASH scores from 12.8 to 4.3, and Mayo Wrist Scores from 80.3 to 89.4. No surgical complications or recurrences were reported. Conclusions Findings suggest that almost half of active patients may improve push-up performance after DWG excision at 6 months. Significant improvements were seen in wrist pain, ROM, grip strength, and all patient-reported outcomes, which is useful when counseling patients undergoing excision.
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Affiliation(s)
- DesRaj Clark
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Maryland
| | - Marvin Dingle
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Maryland
| | - Sameer Saxena
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Maryland
| | - Theodora Dworak
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Maryland
| | - Kyle Nappo
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Maryland
| | | | - George Nanos
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Maryland
| | - Scott Tintle
- Department of Orthopedic Surgery, Walter Reed National Military Medical Center, Maryland
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Zhou J, Al-Ani S, Jester A, Oestreich K, Baldrighi C, Ting JWC. Wrist Ganglion Cysts in Children: An Update and Review of the Literature. Hand (N Y) 2022; 17:1024-1030. [PMID: 33174451 PMCID: PMC9608283 DOI: 10.1177/1558944720966716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Ganglion cysts are the most common soft tissue tumor of the hand and wrist, affecting pediatric and adult populations. Despite their frequency, there is no consensus within the literature regarding the best management of pediatric wrist ganglia, and there are few recent publications examining this topic. We provide an up-to-date literature review examining the current issues and controversies in the management of pediatric wrist ganglia.
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Affiliation(s)
- Jieyun Zhou
- Plastic and Reconstructive Surgery Unit, Department of Surgery, Monash Health, Melbourne, VIC, Australia
| | - Sami Al-Ani
- Hands and Upper Limb Service, Birmingham Women’s and Children’s Hospital, Birmingham, UK
| | - Andrea Jester
- Hands and Upper Limb Service, Birmingham Women’s and Children’s Hospital, Birmingham, UK
| | - Kerstin Oestreich
- Hands and Upper Limb Service, Birmingham Women’s and Children’s Hospital, Birmingham, UK
| | - Carla Baldrighi
- Hands and Upper Limb Service, Birmingham Women’s and Children’s Hospital, Birmingham, UK
| | - Jeannette W. C. Ting
- Plastic and Reconstructive Surgery Unit, Department of Surgery, Monash Health, Melbourne, VIC, Australia
- Hands and Upper Limb Service, Birmingham Women’s and Children’s Hospital, Birmingham, UK
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Chen KP, Ma CH, Wu CH, Jou IM, Tu YK. Arthroscopic resection of recurrent wrist ganglions - A retrospective study of 17 patients. J Orthop Sci 2022; 27:389-394. [PMID: 33676789 DOI: 10.1016/j.jos.2021.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/21/2020] [Accepted: 01/27/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Arthroscopic resection has become a favorable alternative for wrist ganglions. However, for recurrent wrist ganglions, arthroscopic resection is relatively contraindicated. The purpose of this study was to evaluate the clinical outcomes of arthroscopic resection for recurrent wrist ganglions and to identify their safety and efficacy. METHODS From June 2011 to February 2017, 17 patients with recurrent wrist ganglion were treated with arthroscopic resection. We evaluated the visual analog scale, modified Mayo wrist score, and Disabilities of Arm, Shoulder and Hand Outcome Measure preoperatively and at the final follow-up. Patients were questioned for pain reduction, pain during pushups, and any difficulty in returning to work. Recurrence and complications were also assessed at each follow-up visit. RESULTS We enrolled 17 patients and median follow-up was 58 months. The reduction in pain was significant. Only 2 of the 17 patients had residual pain after arthroscopic resection. One female patient showed recurrences 3 years later. Although 2 cases of stiffness were noted after the operation, no significant complication was present 3 months postoperatively. Most patients had good recovery and could resume work; however, 2 patients reported fair recovery. CONCLUSION The results of this study confirmed that arthroscopic excision could be an effective and safe treatment for recurrent ganglions; therefore, should not be contraindicated for treating recurrent wrist ganglions. Nevertheless, further prospective studies with larger patient numbers are needed to establish a stronger evidence for arthroscopic resection of recurrent wrist ganglions.
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Affiliation(s)
- Kuan-Po Chen
- Department of Orthopedics, E-Da Hospital, Kaohsiung, Taiwan.
| | - Ching-Hou Ma
- Department of Orthopedics, E-Da Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan.
| | - Chin-Hsien Wu
- Department of Orthopedics, E-Da Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan.
| | - I-Ming Jou
- Department of Orthopedics, E-Da Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan.
| | - Yuan-Kun Tu
- Department of Orthopedics, E-Da Hospital, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan.
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Abstract
Background: The recurrence rate after open excision of ganglion cysts is approximately 20%. However, this literature is based on a small series of subjects. This study aims to determine the rate and risk of recurrence after open excision of ganglion cysts in a large patient series. Methods: This study included 628 patients who had ganglion cyst excision from 2010 to 2018. A retrospective chart review recorded the following: age, sex, laterality, volar/dorsal location, and recurrence. An overall recurrence rate was calculated. In addition, a 1-way analysis of variance test was used to compare recurrence rates among the individual surgeons, and unpaired t tests were used to compare age of recurrence, dorsal cyst recurrence, laterality of cyst, and recurrence based on sex. Finally, a comparison of recurrence rate over time was conducted for surgeon 3. Results: The overall recurrence rate was 3.8% (24 of 628). The recurrence rates for each surgeon were 3% (9 of 353), 2% (3 of 167), and 11% (12 of 107), P = .02. The age of those with and without a recurrence did not differ (32 years vs 38 years), P = .06. The recurrence rate of dorsal ganglion cysts was 4.1% (14 of 341) compared with 3.5% (10 of 286) for volar ganglion cysts, P = .69. Male patients had a recurrence in 6.4% (13 of 204) of cases compared with 2.6% (11 of 424) of female patients, P = 0.01. There was a decrease in the rate of recurrence from 42.9% to 5.3% over 5 years for surgeon 3. Conclusion: In our sample, male sex and surgeon experience were significant risk factors in ganglion cyst recurrence.
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Affiliation(s)
| | - John R. Fowler
- University of Pittsburgh Medical Center,
PA, USA,John R. Fowler, Department of Orthopaedics,
University of Pittsburgh Medical Center, 3471 Fifth Avenue, Pittsburgh, PA
15213, USA.
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11
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Cost Implications of Varying the Surgical Setting and Anesthesia Type for Dorsal Wrist Ganglion Cyst Excision Surgery. Plast Reconstr Surg 2022; 149:240e-247e. [PMID: 35077419 PMCID: PMC8797019 DOI: 10.1097/prs.0000000000008725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Minimizing expenses attributed to dorsal wrist ganglion cyst excisions, a common minor surgical procedure, presents potential for health care cost savings. Varying the surgical setting (operating room versus procedure room) and type of anesthesia (local-only, monitored anesthesia care, or monitored with regional or general anesthesia) may affect total operative costs. METHODS Patients who underwent an isolated unilateral dorsal wrist ganglion cyst excision between January of 2014 and October of 2019 at a single academic medical center were identified by CPT code. The total direct costs for each surgical encounter that met inclusion criteria were calculated. The relative total direct costs were compared between surgical setting and anesthesia type groups. Univariate and multivariable gamma regression models were used to identify factors associated with surgical costs. RESULTS A total of 192 patients were included; 26 cases (14 percent) were performed in the procedure room and 166 cases (86 percent) were performed in the operating room. No significant differences in demographic factors were identified between groups. Univariate analysis demonstrated that use of operating room/monitored anesthesia care, operating room/monitored anesthesia care with regional anesthesia, and operating room/general anesthesia groups, as compared to procedure room/local-only, yielded significantly greater median costs (1.76-, 2.34-, and 2.44-fold greater, respectively). Multivariable analysis demonstrated 1.80-, 2.10-, and 2.31-fold greater costs with use of operating room/monitored anesthesia care, operating room/monitored anesthesia care with regional anesthesia, and operating room/general anesthesia relative to procedure room/local-only, respectively. CONCLUSION Performing dorsal wrist ganglion cyst excisions in a procedure room with local-only anesthesia minimizes operative direct costs relative to use of the operating room and other anesthetic types.
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Dworak TC, Balazs GC, Tropf J, Nanos GP, Tintle SM. Epidemiology of Symptomatic Dorsal Wrist Ganglia in Active Duty Military and Civilian Populations. JOURNAL OF HAND SURGERY GLOBAL ONLINE 2020; 2:349-353. [PMID: 35415521 PMCID: PMC8991698 DOI: 10.1016/j.jhsg.2020.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 08/04/2020] [Indexed: 11/28/2022] Open
Abstract
Purpose The epidemiology of dorsal wrist ganglia (DWG) has been poorly studied. The purpose of this study was to determine the epidemiology of DWG in the US military and civilian populations. We hypothesized that military service would be associated with an increased risk for developing a DWG. Methods The US Department of Defense Management Analysis and Reporting Tool, a database of health care encounters by military personnel and dependents, was queried for encounters with an International Classification of Diseases, Ninth Revision diagnosis of 727.41 (ganglion of a joint) or 727.43 (ganglion, unspecified location) between 2009 and 2014. There is no specific code for DWG, so a random sample of 1,000 patients was selected from both the military and civilian cohorts. These 2,000 electronic medical records were examined to identify patients with a DWG. This estimate was used to determine the unadjusted incidence of DWG with a 95% confidence interval and a 5% margin of error in the entire military and civilian dependent population. Adjusted incidence rates and incidence rate ratios (IRR) were determined using Poisson regression, controlling for demographic covariates. Results The incidence of DWG in the military population is 14.25/10,000 person-years compared with 7.01/10,000 person-years in the civilian population. Female sex was a significant risk factor in both the military (IRR, 2.59) and civilian populations (IRR, 2.26). Younger age group (age 25–34 years) was a significant risk factor for DWG compared with an older age group (age 45–64 years) in both the military (IRR, 1.74) and civilian populations (IRR, 2.56). Senior rank (both officer and enlisted) was a significant risk factor for DWG compared with junior rank (IRR, 1.95). Conclusions The incidence of DWG was higher in the military compared with the civilian population. There is a higher incidence of a DWG in females and in the senior ranks (both officer and enlisted). Type of study/level of evidence Prognostic III.
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Affiliation(s)
- Theodora C. Dworak
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD
- Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - George C. Balazs
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD
- Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Jordan Tropf
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD
| | - George P. Nanos
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD
- Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - Scott M. Tintle
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD
- Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD
- Department of Orthopaedic Surgery, University of Pennsylvania Health System, Philadelphia, PA
- Corresponding author: Scott Tintle, MD, Department of Orthopaedics, Walter Reed National Military Medical Center, America Building, 2nd Floor, 8901 Wisconsin Avenue, Bethesda, MD.
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Mosegaard SB, Stilling M, Hansen TB. Risk factors for limited improvement after total trapeziometacarpal joint arthroplasty. Health Qual Life Outcomes 2020; 18:90. [PMID: 32228611 PMCID: PMC7106898 DOI: 10.1186/s12955-020-01333-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/18/2020] [Indexed: 12/02/2022] Open
Abstract
Background Trapeziometacarpal (TMC) osteoarthritis can be painful and cause disability for patients. Total joint replacement of the TMC joint provides a pseudo arthrosis with good restoration of the thumb motion and pain relief in most patients. But there is also a risk of no improvement following the operation. The purpose of this study was to identify patients at risk of no clinically important improvement following operative treatment of osteoarthritis of the TMC joint. Methods We included 287 consecutive patients (225 women, 62 men) treated with total joint replacement of the TMC joint due to osteoarthritis with a mean age of 58.9 years (range 41–80) in a prospective cohort study. We collected information preoperatively and 12 months postoperatively on disabilities of the arm, shoulder and hand score (DASH), grip strength and pain at rest and activity on a visual analogue scale (VAS).Results: We found a statistically significant improvement in DASH from 42.0 to 15.9 (p < 0.001), VAS at rest from 3.5 to 0.6 (p < 0.001), VAS at activity from 7.9 to 2.5 (p < 0.001) and grip strength from 21.6 kg to 27.6 kg (p < 0.001) 12 months after the operation, when analysed as a group. There was an increased risk of no clinically important improvement in hand function for patients with preoperative high preoperative grip strength. Also, we found an increased risk of no clinically important improvement in female patients when using VAS as outcome. Conclusion However, we were unable to detect one isolated preoperative predictor as indicator of successful result after operative treatment of TMC osteoarthritis, and as so it was not possible to establish a clinical valid tool for patient selection before surgery. Informed consent was obtained from all patients for being included in the study. The study needed no approval from The Regional Committee of Biomedical Research Ethics as the data was collected, as part of our normal pre- and postoperative clinical pathway, but the study is part of an outcome study of the results after total joint arthroplasty (TJA) of the TMC joint registered in Clinicaltrials.gov (NCT01554748). Trial registration Clinicaltrials.gov (NCT01554748). Registered 15 March 2012.
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Affiliation(s)
- Sebastian Breddam Mosegaard
- University Clinic for Hand, Hip and Knee Surgery, Department of Orthopaedics, Lægårdvej 12, 7500, Holstebro, Denmark. .,Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark.
| | - Maiken Stilling
- University Clinic for Hand, Hip and Knee Surgery, Department of Orthopaedics, Lægårdvej 12, 7500, Holstebro, Denmark.,Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark
| | - Torben Bæk Hansen
- University Clinic for Hand, Hip and Knee Surgery, Department of Orthopaedics, Lægårdvej 12, 7500, Holstebro, Denmark.,Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, Aarhus N, 8200, Denmark
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Polovinets O, Wolf A, Wollstein R. Force transmission through the wrist during performance of push-ups on a hyperextended and a neutral wrist. J Hand Ther 2019; 31:322-330. [PMID: 28684196 DOI: 10.1016/j.jht.2017.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 04/24/2017] [Accepted: 04/26/2017] [Indexed: 02/03/2023]
Abstract
STUDY DESIGN Cross-sectional cohort. INTRODUCTION Push-ups are used ubiquitously to evaluate and strengthen the upper body. They are usually performed in 1 of 2 main ways: with the wrist in hyperextension and with the wrist in a neutral position. PURPOSE OF THE STUDY The purpose of our study was to compare the dynamic forces in the wrist during the 2 push-up styles. METHODS Fourteen volunteers performed push-ups in 2 different patterns: on a hyperextended wrist and a neutral wrist (NW). Two force plates and a motion capture system were used to measure the ground reaction forces (GRFs) and the kinematics of the upper extremity during push-ups. Kinematic and kinetic analyses were performed using Matlab software (Mathworks, Natick, MA). RESULTS The GRF vector was distributed differently during the different types of push-ups. For both methods, the total GRF carried by the upper dominant extremity was larger than those of the nondominant extremity. In the NW configuration, the GRF vector was more uniform throughout the push-up in the vertical direction. The horizontal distance between the capitate bone location and the GRF origin was smaller in hyperextension. The forces traveled more dorsally over a wider area and more ulnarly in the hyperextended wrist. DISCUSSION Forces are transmitted differently through the wrist in the 2 methods. Push-ups on an NW are likely safer because ligaments may be preferentially loaded in hyperextension. Further study may delineate the differences in the anatomic location of force transmission and the long-term clinical effect on the wrist. CONCLUSIONS This study supports the performance of push-ups on a wrist in neutral flexion extension; both to enable patients after surgery or injury to strengthen the upper body and prevent injury and long-term wear in the wrist. The knowledge gained from this study may assist in outlining guidelines for push-up performance. LEVEL OF EVIDENCE Diagnostic level 2a.
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Affiliation(s)
- Olga Polovinets
- Department of Mechanical Engineering, Technion Israel Institute of Technology, Haifa, Israel
| | - Alon Wolf
- Department of Mechanical Engineering, Technion Israel Institute of Technology, Haifa, Israel
| | - Ronit Wollstein
- Department of Mechanical Engineering, Technion Israel Institute of Technology, School of Medicine, Haifa, Israel; Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
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Dunn J, Polmear M, Daniels C, Shin E, Nesti L. Arthroscopically Assisted Transosseous Triangular Fibrocartilage Complex Foveal Tear Repair in the United States Military. JOURNAL OF HAND SURGERY GLOBAL ONLINE 2019. [DOI: 10.1016/j.jhsg.2019.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Crawford C, Keswani A, Lovy AJ, Levy I, Lutz K, Kim J, Hausman M. Arthroscopic versus open excision of dorsal ganglion cysts: a systematic review. J Hand Surg Eur Vol 2018; 43:659-664. [PMID: 29022775 DOI: 10.1177/1753193417734428] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
UNLABELLED We conducted a systematic review comparing recurrence and complication rate following open versus arthroscopic excision of ganglion cysts. Sixteen full-text articles were included. The pooled recurrence rate of open excision was 20% (range: 5.6-40.7%) with Q value of 27 and I2 of 82%. The pooled recurrence rate of arthroscopic excision was 9% (range: 0-17%) with Q value of 10 and I2 of 2%. Eleven of 16 studies were low quality or had a high risk of bias; however, excluding low quality studies or those with high risk of bias produced similar recurrence rates in arthroscopic and open excision (7.9% versus 9.8%). For the subset of studies with complete reporting of complications, rates were similar in open and arthroscopic excision (6% versus 4%). Our review suggests that arthroscopic and open approaches have comparable outcome profiles. Nevertheless, standardized study methods with adequate powering are required to collect high quality data, allowing for greater confidence in conclusions regarding these two approaches for existing ganglion cysts. LEVEL OF EVIDENCE II.
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Affiliation(s)
- Catherine Crawford
- Mount Sinai Hospital, Department of Orthopaedic Surgery, New York, NY, USA
| | - Aakash Keswani
- Mount Sinai Hospital, Department of Orthopaedic Surgery, New York, NY, USA
| | - Andrew J Lovy
- Mount Sinai Hospital, Department of Orthopaedic Surgery, New York, NY, USA
| | - Isaiah Levy
- Mount Sinai Hospital, Department of Orthopaedic Surgery, New York, NY, USA
| | - Kristina Lutz
- Mount Sinai Hospital, Department of Orthopaedic Surgery, New York, NY, USA
| | - Jaehon Kim
- Mount Sinai Hospital, Department of Orthopaedic Surgery, New York, NY, USA
| | - Michael Hausman
- Mount Sinai Hospital, Department of Orthopaedic Surgery, New York, NY, USA
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Dunn JC, Koehler LR, Kusnezov NA, Polfer E, Orr JD, Pirela-Cruz MA, Mitchell JS. Perilunate Dislocations and Perilunate Fracture Dislocations in the U.S. Military. J Wrist Surg 2018; 7:57-65. [PMID: 29383277 PMCID: PMC5788754 DOI: 10.1055/s-0037-1603932] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Accepted: 05/17/2017] [Indexed: 10/19/2022]
Abstract
Background Perilunate dislocations and perilunate fracture dislocations (PLDs/PLFDs) are rare and often associated with poor outcomes. Heretofore, these outcomes have not been evaluated in a high-demand military population. Questions/Purpose The purpose of this study was to evaluate the outcomes in a young, active population after sustaining PLD/PLFD injuries. Patients and Methods We retrospectively reviewed the U.S. military service members who underwent surgical treatment for a PLD/PLFD (Current Procedural Terminology codes 25695 and 25685) between June 1, 2010, and June 1, 2014 through the Military Health System Management Analysis and Reporting Tool (M2) database, capturing patients with a minimum 2-year follow-up. Patient characteristics and outcomes were gathered; however, radiographic analysis was not possible. Results In this study, 40 patients (40 wrists) were included with an average follow-up of 47.8 months. The average age was 28.8 years. Twenty-two injuries (55%) were PLFD and 22 (55%) cases involved the nondominant extremity. On initial presentation, 11 (27.5%) were missed and 50% of patients were presented with acute carpal tunnel syndrome. Range of motion (ROM) was 74% and grip strength was 65% compared with the contralateral wrist; 78% reported pain with activity and only 55% remained on active duty status at final follow-up. Injuries to the nondominant extremity were significantly more likely to experience a good to excellent outcome and regained a more ROM. Patients with ligamentous PLD had less pain at rest and were more likely to return to sport. Conclusion Worse outcomes can be expected for PLD/PLFD of the dominant extremity, transscaphoid PLFD, greater arc injuries, and those undergoing pinning alone. A high-demand patient may expect worse functional results with a higher degree of limitation postoperatively. Level of Evidence The level of evidence is therapeutic IV.
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Affiliation(s)
- John C. Dunn
- Department of Orthopaedic Surgery, William Beaumont Army Medical Center, Fort Bliss, Texas
| | - Logan R. Koehler
- Department of Orthopaedic Surgery, William Beaumont Army Medical Center, Fort Bliss, Texas
| | - Nicholas A. Kusnezov
- Department of Orthopaedic Surgery, William Beaumont Army Medical Center, Fort Bliss, Texas
| | - Elizabeth Polfer
- Department of Orthopaedic Surgery, William Beaumont Army Medical Center, Fort Bliss, Texas
| | - Justin D. Orr
- Department of Orthopaedic Surgery, William Beaumont Army Medical Center, Fort Bliss, Texas
| | - Miguel A. Pirela-Cruz
- Department of Orthopaedic Surgery, Texas Tech University Health Sciences Center, El Paso, Texas
| | - Justin S. Mitchell
- Department of Orthopaedic Surgery, William Beaumont Army Medical Center, Fort Bliss, Texas
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Balazs GC, Dworak TC, Tropf J, Nanos GP, Tintle SM. Incidence and Risk Factors for Volar Wrist Ganglia in the U.S. Military and Civilian Populations. J Hand Surg Am 2016; 41:1064-1070. [PMID: 27663053 DOI: 10.1016/j.jhsa.2016.08.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 07/20/2016] [Accepted: 08/10/2016] [Indexed: 02/02/2023]
Abstract
PURPOSE To identify the incidence and demographic factors associated with volar wrist ganglia in both military and civilian beneficiary populations. METHODS The U.S. Department of Defense Management Analysis and Reporting Tool (M2) accesses a comprehensive database of all health care visits by military personnel and their dependents. Because there is no specific code for ganglions of the wrist, the database was searched for all military personnel and civilian beneficiaries with an International Classification of Diseases, 9th Revision, diagnosis of 727.41 (ganglion of a joint) or 727.43 (ganglion, unspecified location) between 2009 and 2014. Two random samples of 1000 patients were selected from both the military and the civilian beneficiary cohorts, and their electronic medical records were examined to identify those with volar wrist ganglia. The proportion of volar wrist ganglia was then applied to the overall population data to estimate the total incidence with a 95% confidence interval and 5% margin of error. Unadjusted incidence rates and adjusted incidence rate ratios were determined using Poisson regression, controlling for age, sex, branch of military service, and military seniority. RESULTS The unadjusted incidence of volar wrist ganglia is 3.72 per 10,000 person-years (0.04%/y) in female civilian beneficiaries, 1.04 per 10,000 person-years (0.01%/y) in male civilian beneficiaries, 7.98 per 10,000 person-years (0.08%/y) in female military personnel, and 3.73 per 10,000 person-years (0.04%/y) in male military personnel. When controlled for age, military personnel have a 2.5-times increased rate of volar wrist ganglia, and women have a 2.3-times increased rate. In the military cohort, female sex, branch of service, and seniority were significantly associated with the diagnosis of a volar wrist ganglion when controlled for age. In the civilian beneficiary cohort, only female sex was significant. CONCLUSIONS Military service members have higher rates of volar wrist ganglia diagnoses than their age- and sex-matched civilian counterparts. Women are significantly more likely to be diagnosed with a volar wrist ganglion, regardless of age or military status. CLINICAL RELEVANCE The epidemiology of volar wrist ganglia is poorly defined, and few studies have firmly defined demographic factors associated with the diagnosis. We provide the overall incidence rate of the diagnosis and report a significant association with female sex even when controlled for age.
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Affiliation(s)
- George C Balazs
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD
| | - Theodora C Dworak
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD
| | - Jordan Tropf
- Johns Hopkins University School of Medicine, Baltimore, MD
| | - George P Nanos
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD
| | - Scott M Tintle
- Department of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD.
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